memory leak?

Hi ZiadJ. First thx for cool control.
But I have problem with memory. In current project I use prism and when I remove view with popupmenu from region it does not removed from memory by GC.It's because PopupMenuManager hold reference for MenuTriggerElement. Now I'm removing MenuTriggerElement from
PopupMenuManager.ApplicationMenus manualy but it's be cool if you fix it.